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Addition
Subtraction
Multiplication
Division
Decimals
100

x + 5 = 25

What is 20

100

x - 3 = 6

What is 9

100
9x = -27
What is -3
100
y/-6 = 2
What is -12
100
m + 3.7 = 2.4
What is -1.3
200

a + 10 = 100

What is 90

200

d - 10 = -9

What is 1

200
-7x = -63
What is 9
200
x/4 = -14
What is -56
200

x + 66.09 = 102.8

What is 36.71

300

n + (-3) = -14

What is -11

300

k - 82 =122

What is 204

300
-5e = -400
What is 80
300
x/6 = -6
What is -36
300
-5.6 = 0.8x
What is -7
400

x + (-14) = -99

What is -85

400

x - 321 = -661

What is -340

400
-11x = 275
What is -25
400
-28 = a/-13
What is 364
400
c/-0.29 = 5.5
What is -1.595
500

-35 = c + 35

What is -70

500

a - (-20) = 31

What is 11

500
-21y = -756
What is 36
500
-80 = x/15
What is -1200
500

0.12 = y/0.12

What is 0.0144